<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="./vue.js"></script>
</head>
<body>
<div id="root">
</div>
</body>
<script type="module">
   import Vue from"./module/vue.js";
   const data={
       num:10
   }
   const vm = new Vue({
       data,
       methods:{
           fn(){
               this.num=10000;
               console.log(this,this.num);
           }
       }
   })
   vm.fn();
   console.log(vm.num);
</script>
</html>